[bird_radv] Add option to include MTU in RAs.

type/__bird_bgp/manifest

@@ -89,7 +89,6 @@ ipv4_import=
 if [ -f "${__object:?}"/parameter/ipv4-import ];
 then
 	ipv4_import="$(cat "${__object:?}"/parameter/ipv4-import)"
-	echo "FOO" >&2
 fi
 export ipv4_import
 

type/__bird_radv/man.rst

@@ -15,12 +15,17 @@ autoconfigure IPv6 hosts, this type is a rudimentary implementation to generate
 configuration for Bird to do so.
 
 
-REQUIRED MULTIPLE PARAMETERS
-----------------------------
+REQUIRED PARAMETERS
+-------------------
 interface
   The interfaces to activate the protocol on. RAs will be sent using the
   prefixes configured on these interfaces.
 
+OPTIONAL PARAMETERS
+-------------------
+mtu
+  An optional MTU setting to include in the router advertisements.
+
 
 OPTIONAL MULTIPLE PARAMETERS
 ----------------------------
@@ -41,6 +46,7 @@ EXAMPLES
 
     __bird_radv datacenter \
         --interface eth1 \
+        --mtu 9000 \
         --route ::/0 \
         --ns 2001:DB8:cafe::4 \
         --ns 2001:DB8:cafe::14 \

type/__bird_radv/manifest

@@ -55,6 +55,12 @@ then
 	DNSSL=$(sed -e 's/^/\tdnssl "/' -e 's/$/";/' "${__object:?}/parameter/dnssl")
 fi
 
+MTU=
+if [ -f "${__object:?}/parameter/mtu" ];
+then
+	MTU=$(cat "${__object:?}/parameter/mtu")
+fi
+
 __file "${confdir:?}/radv-${__object_id:?}.conf" \
 	--mode 0640 --owner root --group bird \
 	--source - << EOF
@@ -71,7 +77,9 @@ protocol radv ${__object_id:?} {
 	propagate routes ${have_routes:?};
 	ipv6 { table radv_routes; export all; };
 
-$(sed -e 's/^/\tinterface "/' -e 's/$/";/' "${__object:?}/parameter/interface")
+	interface "$(cat "${__object:?}/parameter/interface")" {
+	$MTU
+	};
 
 $RDNS
 

type/__bird_radv/parameter/optional

@@ -0,0 +1 @@
+mtu

type/__systemd_network/gencode-remote

@@ -0,0 +1,20 @@
+#!/bin/sh -e
+#
+# 2022 Joachim Desroches (joachim.desroches@epfl.ch)
+#
+# This file is part of cdist.
+#
+# cdist is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cdist is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cdist. If not, see <http://www.gnu.org/licenses/>.
+
+systemctl enable systemd-networkd

type/__systemd_network/man.rst

@@ -0,0 +1,68 @@
+cdist-type__systemd-network(7)
+==============================
+
+NAME
+----
+cdist-type__systemd-network - Configure systemd.network(5) file.
+
+
+DESCRIPTION
+-----------
+
+This type allows you to configure network interfaces by generating a
+systemd.network(5) file. It will enable systemd-networkd, so be sure to remove
+any conflicting network configuration tool if appropriate!
+
+Note that the systemd.network(5) system is very complete, and this type does
+not aim at providing every possible option. Are currently available only the
+most common options: feel free to add anything you need to this type which
+hopefully will grow over time.
+
+
+REQUIRED PARAMETERS
+-------------------
+None.
+
+
+OPTIONAL PARAMETERS
+-------------------
+description
+  A text field used when displaying details about this network.
+
+OPTIONAL MULTIPLE PARAMETERS
+----------------------------
+match-name
+  A text field that will be set in the `Name` option of the `[Match]` section.
+
+
+BOOLEAN PARAMETERS
+------------------
+ipv6ra-usedomains
+  Set the `UseDomains` option of the `[IPv6AcceptRA]` section to `True`.
+
+
+EXAMPLES
+--------
+
+.. code-block:: sh
+
+    # TODO
+    __systemd-network
+
+
+SEE ALSO
+--------
+`cdist-type_systemd-resolved`\ (7)
+`systemd.network`\ (5)
+
+AUTHORS
+-------
+Joachim Desroches <joachim.desroches@epfl.ch>
+
+
+COPYING
+-------
+Copyright \(C) 2022 Joachim Desroches. You can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.

type/__systemd_network/manifest

@@ -0,0 +1,84 @@
+#!/bin/sh -e
+#
+# 2022 Joachim Desroches (joachim.desroches@epfl.ch)
+#
+# This file is part of cdist.
+#
+# cdist is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cdist is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cdist. If not, see <http://www.gnu.org/licenses/>.
+#
+
+os=$(cat "${__global:?}/explorer/os")
+
+case "$os" in
+'debian' | 'ubuntu' | 'archlinux')
+	:
+	;;
+*)
+	printf "Your operating system (%s) is currently not supported by systemd-network\n" "$os" >&2
+	printf "Please contribute an implementation for it if you can.\n" >&2
+	exit 1
+	;;
+esac
+
+# XXX: Please keep the option parsing organized in order per-section, with
+# sections in the same order as they are in the manpage. This will make hacking
+# and maintaining this type much easier.
+
+output_file="${__object:?}/files/${__object_id:?}.network"
+
+cat << EOF > "$output_file"
+# This file is managed by cdist. Do not edit by hand!
+EOF
+
+# Match section
+# Ensure section is needed, OR existence of optional params.
+if [ -f "${__object:?}/parameter/match-name" ];
+then
+	printf "\n[Match]\n" >> "$output_file"
+
+	if [ -f "${__object:?}/parameter/match-name" ];
+	then
+		sed -e 's/^/Name=/' \
+			"${__object:?}/parameter/match-name" >> "$output_file"
+	fi
+fi
+
+# Network section
+# Ensure section is needed, OR existence of optional params.
+if [ -f "${__object:?}/parameter/description" ];
+then
+	printf "\n[Network]\n" >> "$output_file"
+
+	if [ -f "${__object:?}/parameter/description" ];
+	then
+		sed -e 's/^/Description=/' \
+			"${__object:?}/parameter/description" >> "$output_file"
+	fi
+fi
+
+# IPv6AcceptRA section
+# Ensure section is needed, OR existence of optional params.
+if [ -f "${__object:?}/parameter/ipv6ra-usedomains" ];
+then
+	printf "\n[IPv6AcceptRA]\n" >> "$output_file"
+
+	if [ -f "${__object:?}/parameter/ipv6ra-usedomains" ];
+	then
+		printf "UseDomains=True\n" >> "$output_file"
+	fi
+	
+fi
+
+__file "/etc/systemd/network/${__object_id:?}.network" \
+	--source "$output_file"

type/__systemd_network/parameter/boolean

@@ -0,0 +1 @@
+ipv6ra-usedomains

type/__systemd_network/parameter/optional

@@ -0,0 +1 @@
+description

type/__systemd_network/parameter/optional_multiple

@@ -0,0 +1 @@
+match-name